15-Minute Salsa and Black Bean Chicken Skillet

olive oil

to 1.25 pounds boneless skinless chicken breast, cut into bite-sized pieces

to 3/4 cup red bell pepper, diced small

jar chunky salsa (I used a store brand with corn included)

black beans, drained and rinsed (I used no salt added)

ground cumin

freshly ground black pepper, or to taste

salt, optional and to taste

about 2 green onions, sliced into thin rounds

fresh cilantro, for garnishing

avocado slices or chunks, optional for garnishing

shredded cheese, optional for garnishing